From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugzilla@gcc.gnu.org>
Received: by sourceware.org (Postfix, from userid 48)
 id E31683944427; Tue, 22 Sep 2020 19:57:49 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org E31683944427
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
 s=default; t=1600804669;
 bh=D7Qa0sg790GIrNnLXvLtXbJ5elhOHWCWuqBxdMfpkOw=;
 h=From:To:Subject:Date:In-Reply-To:References:From;
 b=hIe01KZIuS1EinNrGtUk3k7ylS/Jp4hXZw5vVlbiErxlZL+3hFh2t9+qDO/TrIXVD
 0tuEMjoDlsQml+0NvMu58pX+2etGblqdM/76Nx8SCFeOfn8fp9kGIFPAjVpo4WMEi5
 lTll3IlfMFxapUt3bjTK7qcK6a+IhsapJJlnM/N8=
From: "hubicka at ucw dot cz" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/97159] [11 Regression] segfault in
 modref_may_conflict
Date: Tue, 22 Sep 2020 19:57:49 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: tree-optimization
X-Bugzilla-Version: 11.0
X-Bugzilla-Keywords: ice-on-valid-code
X-Bugzilla-Severity: normal
X-Bugzilla-Who: hubicka at ucw dot cz
X-Bugzilla-Status: UNCONFIRMED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P1
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: 11.0
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-97159-4-cxv7ISDlB6@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-97159-4@http.gcc.gnu.org/bugzilla/>
References: <bug-97159-4@http.gcc.gnu.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
X-BeenThere: gcc-bugs@gcc.gnu.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Gcc-bugs mailing list <gcc-bugs.gcc.gnu.org>
List-Unsubscribe: <https://gcc.gnu.org/mailman/options/gcc-bugs>,
 <mailto:gcc-bugs-request@gcc.gnu.org?subject=unsubscribe>
List-Archive: <https://gcc.gnu.org/pipermail/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-request@gcc.gnu.org?subject=help>
List-Subscribe: <https://gcc.gnu.org/mailman/listinfo/gcc-bugs>,
 <mailto:gcc-bugs-request@gcc.gnu.org?subject=subscribe>
X-List-Received-Date: Tue, 22 Sep 2020 19:57:50 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D97159

--- Comment #3 from Jan Hubicka <hubicka at ucw dot cz> ---
Recursion is handled in normal compilation (we analyze the function and
while hitting the recursive call we skip the summary). I suppose here
the problem is missing LTO and offloading.=20

With LTO lto summaries (that include types) are streamed out while they
are turned into non-lto summaries at ltrans time.  We need to do similar
thing with offload.

Honza=